def main():
    X = input_ints()

    print(10 - (X // 200))


def input_ints():
    line_list = input().split()

    if len(line_list) == 1:
        return int(line_list[0])
    else:
        return map(int, line_list)


def input_int_list_in_line():
    return list(map(int, input().split()))


def input_int_tuple_list(n: int):
    return [tuple(map(int, input().split())) for _ in range(n)]


main() def main():
    X = input_ints()

    print(10 - (X // 200)) main X = input_ints() X input_ints() input_ints print(10 - (X // 200)) print 10 - (X // 200) 10 X // 200 X 200 def input_ints():
    line_list = input().split()

    if len(line_list) == 1:
        return int(line_list[0])
    else:
        return map(int, line_list) input_ints line_list = input().split() line_list input().split() ().split () input split if len(line_list) == 1:
        return int(line_list[0])
    else:
        return map(int, line_list) len(line_list) == 1 len(line_list) len line_list 1 return int(line_list[0]) int(line_list[0]) int line_list[0] line_list 0 return map(int, line_list) map(int, line_list) map int line_list def input_int_list_in_line():
    return list(map(int, input().split())) input_int_list_in_line return list(map(int, input().split())) list(map(int, input().split())) list map(int, input().split()) map int input().split() ().split () input split def input_int_tuple_list(n: int):
    return [tuple(map(int, input().split())) for _ in range(n)] input_int_tuple_list tuple(map(int, input().split())) for _ in range(n) for _ in range(n) _ range(n) range n for _ in range(n) tuple(map(int, input().split())) tuple map(int, input().split()) map int input().split() ().split () input split return [tuple(map(int, input().split())) for _ in range(n)] [tuple(map(int, input().split())) for _ in range(n)] n: int n main() main def input_ints():
    line_list = input().split()

    if len(line_list) == 1:
        return int(line_list[0])
    else:
        return map(int, line_list) def input_ints():
    line_list = input().split()

    if len(line_list) == 1:
        return int(line_list[0])
    else:
        return map(int, line_list) input_ints def input_int_list_in_line():
    return list(map(int, input().split())) def input_int_list_in_line():
    return list(map(int, input().split())) input_int_list_in_line def main():
    X = input_ints()

    print(10 - (X // 200)) def main():
    X = input_ints()

    print(10 - (X // 200)) main def input_int_tuple_list(n: int):
    return [tuple(map(int, input().split())) for _ in range(n)] def input_int_tuple_list(n: int):
    return [tuple(map(int, input().split())) for _ in range(n)] input_int_tuple_list
def main():
    X = input_ints()

    print(10 - (X // 200))


def input_ints():
    line_list = input().split()

    if len(line_list) == 1:
        return int(line_list[0])
    else:
        return map(int, line_list)


def input_int_list_in_line():
    return list(map(int, input().split()))


def input_int_tuple_list(n: int):
    return [tuple(map(int, input().split())) for _ in range(n)]


main()
